【简答题】小题1:The cup fell off the table and got b____________. 小题2:If you want to keep h_____________, you need to eat less and take more exercise. 小题3:S______________ is the ninth month of the year. 小题4:I don...
【单选题】A 37.5 g piece of gold at 83.0 °C is added to 100. g H2O at 22.0 °C in a well-insulated cup. What is the temperature after the system comes to equilibrium? (The specific heat capacity of Au is 0.129 )